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用途
sufficient for 100 colorimetric tests
檢測方法
colorimetric
相關疾病
cancer; neurological disorders; hematological disorder
儲存溫度
−20°C
基因資訊
human ... GCK(2645) , HK1(3098) , HK2(3099) , HK3(3101)
mouse ... GCK(103988) , HK1(15275) , HK2(15277) , HK3(212032)
rat ... GCK(24385) , HK1(25058) , HK2(25059) , HK3(25060)
一般說明
己糖激酶,催化醛酸和酮己糖的ATP 依赖性磷酸化为己糖-6-磷酸,催化许多重要生化途径的第一步。在哺乳动物组织中,葡萄糖是己糖激酶的主要底物。哺乳动物组织中有四种己糖激酶同工酶(HK-I、-II、-III和-Iv),它们的动力学和调节性质不同,以及组织分布和辅因子的使用不同。己糖激酶催化大多数相关葡萄糖代谢途径的第一步。己糖激酶活性的改变与多种疾病相关,例如X 连锁的肌营养不良症、溶血性贫血和癌症。
應用
己糖激酶比色检测试剂盒已用于测量己糖激酶的活性。
適合性
适用于测定己糖激酶活性,分析葡萄糖代谢和细胞信号,以及筛选血清、动物组织(肝脏、心脏、肾脏等)和细胞培养物(粘附或悬浮细胞)中的抗糖尿病药物。
原則
己糖激酶比色测定试剂盒提供了一种简单、直接的方法来测量各种样品中的己糖激酶活性。己糖激酶活性通过偶联酶测定法测定,其中葡萄糖通过己糖激酶转化为葡萄糖-6-磷酸,其被葡萄糖-6-磷酸脱氢酶氧化形成 NADH。所得到的NADH 减少无色探针,从而产生与己糖激酶活性成比例的比色(450nm)产物。一个单位的HK是在室温下,在pH 8.0 下,每分钟产生1.0 μmole NADH的酶的量。
其他客户在看
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实验方案
在测定己糖激酶活性时,使用了一种在340nm处的连续分光光度法进行测定。己糖激酶使用ATP作为磷酸的来源来催化D-己糖的磷酸化。
Measure hexokinase activity using a continuous spectrophotometric rate-determination assay at 340 nm, catalyzing D-hexose sugar phosphorylation using ATP.
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